What happened? They seemed so well matched, you're surely thinking. Well, according to the eighty-five-year-old magazine publisher's Twitter, the twenty-five-year-old bride-to-be just fell out of love. "The wedding is off," his sad tweet read. "Crystal has had a change of heart."

But that didn't satisfy the skeptics over at TMZ, who report that Hefner and Harris "had a nasty argument this [past] weekend on the phone" and that Harris "quickly moved her stuff out." So what were they arguing about that was bad enough to call off the wedding? Submit your guess in the comments section! The winner will get nothing — absolutely nothing.